Conveyer



Sept. 11, 1.928. v

- 1,683,653 W. M. BROWN CONVEYER Filed Sept. 24, 1926 I/Z'Zzeesses:jnvenlor:

Way/4M M470 5505/) M W I v Patented Sept. 11, 1928.

UNITED STATES PATENT oFncE.

v WILLIAI MILTON BROWN, 01 JOHNSTOWN, I'ENNSYLVANIA.

CONVEYER.

Application filed September 24. 1926. Serial No. 137,459.

over the sprockets at either the loading or discharge end of theconveyer.

Heretofore the scraper or drag barshave 1 been positioned to one side orthe other of the vertical center of the links of the chain to which theyare attached, and when they pass over the sprockets at either end of theconveyor theyare lifted above the conveyer 1 pan due to the angleassumed by the links in passing around the sprockets, thus allowing thematerial being conveyed to pass freely under the bar. i

Another object is to provide a conveyer in which. the scraper or dragbars are permw nently welded to the links of the chain so as to preventaccidental misplacement and loss of the bars.

In the drawings: Figure 1 is a fragmentary plan view illustrating aportion of a conveyer constructed inaccordance with the presentinvention.

Figure 2 is a sectional view of one of the scraper or drag bars. Y

Figure 3 is a sectional view showing the position'ot the scraper or dragbars as they pass around the sprocket at the end of a conveyer. 7

Referring more particularly to the "drawas ings, the numeral 2designates the conveyer chains as a whole, which are connected by thetransverse scraper or drag bars 3. The

chains 2 broadly, each comprise inner links 4 I pivotally connected byand outer links 5 pivot pins6. y y

The pins 6 are upset at both ends as at 8 to hold the links togetherexcept at the points where the scraper or drag bars aremounted. Thespecial inside links 5? carrying the drag bars 3 are of special form inthat they are permanently welded to the bars. The pivot pins 6connecting the links carrying the scraper or drag bars are headed orupset at one end and have theirother ends provided with cotter pins 10for locking the pivot pins in position.

The scraper or drag bar members are com posed of a rectangular bar 3which is arranged edgewise and has its end-s welded to a pair 0t outsidelinks 5 at their vertical center line. The rigid and permanent mountingof the drag bars 3 at the vertical center line of the links 5 is theimportantfeature of this invention, since scraper or drag bars thusmounted will hug or rideon the conveyer pan when thechain is passingover or v around the sprockets at either end of the corn veyer andprevent the passage of the material being conveyed under the bars, and

bars secured by welding to the links willnot be pulled loose when thechains are thrown special outside links for said chains, and rectangularscraper bar-s permanently secured to said special-links at theirtransverse centers.

2A scraper bar for endless conveyers, comprising a pair of flat linkmembers and a scraper bar extending between and rigidly and permanentlysecured'to said their transverse centers;

In testimony whereof, I have hereunto signed my name;

WILLIAM MILTON BROWN.

links at.

